What should the size of one innerduct be in a typical installation?

The commonly recommended size for one innerduct in a typical installation is 25 mm (1 inch). This dimension allows for a suitable balance between capacity and space efficiency, making it ideal for housing fiber optic cables and ensuring proper airflow and bend radius to maintain signal integrity. Additionally, this size is often compatible with various installation scenarios, such as multi-duct systems where multiple ducts are utilized in one conduit.

Choosing this size also aligns with industry standards that focus on facilitating maintenance and future expansion. Larger sizes could be more cumbersome in tight installations, while smaller sizes might not provide sufficient capacity for the fiber optic cabling needs, potentially leading to issues with installation and performance.